Is this one of those cases where at one point you had an error in the file and you figured it was down to spaces? You fixed that issue, it still didn't work but from that point you never thought to question the assumption.
I find myself doing this sort of thing all the time..
Somewhere in my head I had that spaces caused a syntax error, and the UI for systemd is not obvious when you first start using it ... so if it's working then leave well alone. I'll be making all of my .service files (not so many) human-readable in the near future!
I find myself doing this sort of thing all the time..